Note: Javascript is disabled or is not supported by your browser. For this reason, some items on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov.

Figure 2

Figure 2. Positive results by PCR and culture for influenza A and pandemic (H1N1) 2009 virus (pH1N1) in 47 household contacts with laboratory-confirmed influenza, by delay between day of symptom onset and day of first swab collection, Quebec City, Quebec, Canada, May 27–July 10, 2009.

The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.